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10 Weird Places Aliens Might Be Lurking
· 23.06.2023 · 11:16:54 ··· Freitag ⭐ 0 🎬 0
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10 Weird Places Aliens Might Be Lurking
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The Fermi Paradox is one of the most puzzling problems about living in our universe. Based on our current understanding of biology and physics, we should see alien civilizations or signs of their existence across the night sky. Yet as far as we can tell, we are alone in the cosmos. Why is this?
One reason that we are not finding alien life is that we are not looking in the right places. Since Earth lifeforms are the only ones we know of, scientists have tended to look for life like ours. Perhaps Earth is unusual, and life flourishes in far stranger places than we ever imagined.
Here are ten places that have been suggested as homes for alien organisms. Related: Top 10 Ways Aliens Have Appeared Through The Ages 10 Venus Life on Venus National Geographic Venus is quiet like Earth, or at least Earth if it was sent to hell. Both planets are similar in size and mass, and the surface’s gravity is comparable. Surely this makes it an obvious place to look for life. When astronomers in the early 20th century peered at Venus through their telescopes, all they could see were dense clouds reflecting sunlight. This led some to picture the surface as a tropical and humid swamp teeming with lifeforms. Unfortunately, when space probes explored the planet, they found its surface temperature was hot enough to melt lead, and its toxic atmosphere had a pressure nearly 100 times that on Earth. Not really somewhere to expect life, then.
Except there are parts of the planet that may just harbors organisms. There are places higher in the atmosphere where the pressure is not too great, the temperature is cool enough for liquid water, and there might be less of the ubiquitous sulfuric acid. Single-celled organisms might be able to exist there, caught in the high winds. One theory is that these organisms could live their lives in two stages. When in the right place, they are active and alive, but if they start falling toward the surface as a droplet forms around them, they go into a tough hibernation state that can survive at lower levels. As they dry out on their descent, they become lighter and are carried back into the habitable zone, where they can become active again.
A recent observation by the ALMA observatory suggested there were high levels of phosphine in the atmosphere of Venus. On Earth, only life is known to form phosphine, so it was suggested it might be coming from Venusian life. Unfortunately, it seems that this detection was mistaken. If life exists on Venus, we’ll have to look harder. [1] 9 Under Ice Why Aliens Might Love Their Frozen Home One of the reasons astronomers search Earth-like planets in certain orbits around stars is that there is one indisputable fact about life on Earth—it needs liquid water to survive. Too close to a star, and all the water boils. Too far, and it all turns to ice. At least, that was what astronomers thought. Some places outside the habitable zone of our own sun might be concealing vast oceans.
The icy moons of Jupiter, like Ganymede, Europa, and Callisto, are covered with layers of water ice but underneath may be deep reservoirs of water where life could evolve. Europa is only a quarter the diameter of Earth but could have more than four times all the water found in Earth’s oceans under its icy outer crust. It is thought that the massive pressures exerted by Jupiter’s gravity provide the energy to keep this ocean in its liquid form.
We know that life can exist in the deepest and darkest parts of Earth’s seas, and so it is just possible that life found a way to survive on these icy moons. Multiple space probes have been and will be launched toward Jupiter to get a better look at its moons and see if life can be detected. [2] 8 Comets Possible signs of alien life on comet Comets can be some of the most spectacular sights in our sky. As they plunge from the outer solar system toward the sun, they warm up and blast huge plumes that form illuminated tails behind the comet. Because they have a large amount of water ice, they may have b...
· 23.06.2023 · 11:16:54 ··· Freitag
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